Think about your topic, and write it down as a question you are trying to answer, or a hypothesis you are trying to find evidence for.
This example is taken from a Human Factors Engineering class. The student was interested in how video games often use well-timed rewards (loot, leveling up, etc.) to keep players hooked on the game. The student wondered if the timing of the rewards made a difference in the player's engagement; would a player lose interest if rewards were provided too often or not often enough?
Based on these ideas, the student came up with this question: